update

index.d.ts

@@ -8,6 +8,7 @@ import {
 } from "vue/types/options";
 import { Vue } from "vue/types/vue";
 import { PluginFunction, PluginObject } from "vue";
+import { Store } from "vuex";
 
 interface socketHandler<T> {
     (this: T, ...args: any[]): SocketIOClient.Socket
@@ -33,9 +34,9 @@ declare module 'vue/types/options' {
 
 export interface VueSocketOptions {
     debug?: boolean;
-    connection: string,
+    connection: string | SocketIOClient.Socket,
     vuex?: {
-        store?: any,
+        store?: Store<any>,
         actionPrefix?: string,
         mutationPrefix?: string,
         options?: {

package.json

@@ -39,6 +39,7 @@
     "babel-loader": "^8.0.4",
     "cross-env": "^5.2.0",
     "vue": "^2.6.10",
+    "vuex": "^3.1.1",
     "webpack": "^4.23.1",
     "webpack-cli": "^3.1.2"
   }